Carrier for braiding machines



Dec. 26, 196,7 l M. OSTERMANN 3,359,848

CARRIER FOR BRAIDING MACHINES Filed Sept. v16,- 1965 4 Sheets-Sheet 1 v V H '4 57V uw; 40 i l :I 44 1 43M i; 44 'il 39 L 5 33 '43% i6 Z2 M v /NvfA/roR @far @Mel-nam DeC- 26, `19.67 M. OSTERMANN 3,359,848

CARRIER FOR BRAIDING MACHINES Filed sept. le, 1965 s 4 sheets-sheet 2 /IVVE'N'OR Dec 26, 1967 MQSTERMANN' 3,359,848'

CARRIER FOR BRAIDING MACHINES Filed sept. 16, 1965 4 sheets-sheet :5

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Dec. 26, 1967 M osTERMANN v 3,359,848

CARRIER FOR ABPUHD]I1G MACHINES Filed sept. 16, 1965 4 sheets-sheet 4 /A/l/fA/m? Mak @flaw/14 Mfr United States Patent O 3,359,848 CARRIER FOR BRAIDING MACHINES Max Ostermann, Wuppertal-Barmen, Germany, assignor to W. & M. Ostermann, Wuppertal-Barmen, Germany, a firm Filed Sept. 16, 1965, Ser. No. 487,874 Claims priority, application Germany, Sept. 17, 1964, 10,382 8 Claims. (Cl. 87-56) ABSTRACT OF THE DISCLOSURE A braiding carrier has an axially extending tensioning shaft supporting spools for rotation. The wound of material acts on a brake for the spools.

This invent-ion -relates to a carrier for braiding machines, particularly hose braiding machines, of the kind having spools which receive the braid material, preferably in the form of high tensile steel wires, and which are mounted for rotation about a common axis.

In known machines of the foregoing kind the spool axle is dis-posed transversely to the axis of the carrier, the spool capacity being considerably restricted by the transverse position.

The present invention aims at obviating this disadvantage and to this fend is concerned with a carrier for braiding machines, particularly hose braiding machines, having spools mounted on a tensioning shaft and receiving the braid material preferably in the form of high-tensile steel wires. The spools are mounted for rotation and braking about a common axis coinciding with the carrier axis. The spool diameter is inscribed in the so-called constructon square formed by the rotation of the carrier, and the heigth or number of spools in not limited by the rotation of the carrier. Furthermore, a brake device operated bythe tractive force of the lbraid material and loaded by a coil spring may be disposed coaxially to the spool axis, said device having a tensioning shaft carrying a coil spring.

The tensioning sha-ft is advantageously associated with a plurality of coaxially mounted runner rings, preferably two, which lare driven in opposite direction by the braid material and are separated by a tensioning lever pivotally mounted on the tensioning shaft. Each runner ring is preferably associated with a deiiecting guide for the braid material, one of said deecting guides being a roller on a brake lever while the other is fastened and has the form of an eye on the carrier. Between the two devices a roller is rotatably mounted on the outer end of the tensioning lever.

The brake lever has two arms of unequal lengths and by its shorter arm acts on a brake plate which is connected to the shorter arm by means of journal bearings. The runner rings may be mounted on a cylinder which is mounted coaxially on the tensioning member forming a spring chamber and connected to the tensioning shaft by spring plates.

The tensioning shaft can be pulled out of the head of the lacer for the purpose of changing the spools and the head can be joined -by support members to the foot of the carrier, said support members being disposed diagonally and spaced apart, that is to say in the corners of the construction square, and provided with guide rollers. The coil spring and also the spool assembly can be given optimum dimensions and breakage is thus avoided, and the spool or spring packet of the next larger carrier size can be used.

In order that the invention may be more readily understood, reference is made to the accompanying drawings lCe which illustrate diagrammatically and by way of example, one embodiment thereof, and in which:

FIGURE 1 is a view which shows a carrier according to the invention, in longitudinal section,

FIGURE 2 is a view which shows the carrier of FIG. 1 turned through 90, partly in section,

FIGURE 3 is a view which shows the carrier of FIG. 2 turned further through 90, in elevation,

FIGURE 4 is a section on the line IV-IV of FIG- URE 1,

FIGURE 5 is a section on the line V-V of FIGURE 3, and

FFIGUR'E 6 is a section on the line VI-VI of FIGURE 3, turned in anti-clockwise direction through in the plane of the drawing.

Referring more particularly to the drawings, a carrier 8 is rotatable about an axis which is disposed coaxially to a tensioning shaft 9 mounted in the head portion and foot portion of the carrier. The lbearings of shaft 9 are formed in bearing plates 10, 1|1 and 12 which are held parallel to one another and spaced apart by side or corner support members 13, 1'4, and .15. The support members 13 are disposed in the corners of the so called construction square which determines the circular path of the carrier and in which the diameter of a number of spools 16, which contain wound up braid material, is inscribed. Angled, round, and Hat iron bars are used as support members 13, 14 and 15, and are fastened by bolting or the like to the plates 10, 11 and 12, the plate 11 being joined by an angle iron 1'3, a round iron rod 14, and a fiat iron bar y15 to the -pl-ate 10 and by three angle irons 13 with the aid of cross-members 17 to the plate 12.-

Between the plates 10 and 11 the spools 16 are mounted on a tube or sleeve 1S and separated by brake discs 19, the spools being `frictionally coupled together and adapted to slip in the thread winding direction, as permitted by pressure acting against the outer flanges of the two spools 1y- -ing on the outer ends of tube 18. Adjacent spools rotate in opposite directions since the lbraiding material is correspondingly wound up.

A brake plate or disk 20 is associated wit-h the spools 16 and is guided by means of its bore 21 in axial oscillating movement on the tension shaft 9. The brake plate 20 can -be loaded by a two-arm angular lever 22 having arms of ditferent lengths as best seen 4in FIG. 3. The lever 22 carries on one side at the `end of the longer -arm a rotatably mounted roller 23 and is rotatably mounted by shaft 2S in blocks 24 on the plate 10. As shown in FIG. 4, two short arms are fixed to shaft 25 (FIG. 4) separtaely from -one another. The shorter arms have two pairs of bearing eyes 216, 26', one eye 26 for the shaft 25 and the othereye 26 for journals 27 which are formed by Vtwo screws 27 at the ends of the short arms and leave the centre of the plate 10` free.

The screws 27 are fastened in blocks 28 secured to brake plate 20 and drivingly coupling the latter to the lever 22. The plate 10 has a central bore 29 for the tension shaft 9, which by means of Ia shoulder 30 rests on the middle portion 31 of the plate 10, see FIG. 2. The plate 20 is supported by means of the eyes 26, 26 on respective spring-loaded `bolts 32, which are slidably guided in a stepped bore 33 and restricted in movement by a shoulder 34 and a screw-threaded stopper 32'.

The FIGURES l and 3 to 6 illustrate the raised or released position of the brake, and FIGURE 2 the bolts 32 with the spr-ings 34 compressed.

T-.he lever 22 is provided at its long arm with a bentover portion 35 having a slot 36 for adjusting the position of the roller 23, which is in the raised position as illustrated in .FIGURE 3 and in 4braking position (in broken lines) projects'by its pivot point beyond the carrier axis. Beneath the roller 23, a roller 37 is rotatably fastened to 3 a collar 38 which is formed on a cylinder 39 (FIGS. 2 and 3) and serves as tensioning member for a coil spring 40 mounted in the cylinder on the tension shaft 9.

Two runner rings 41 and 42 are rotatably mounted by Ameans of needle bearings coaxially to the carrier axis on the cylinder 39 and separated by the collar 38. Each runner ring is provided on the periphery with a groove `43 and a ange 44, which has approximately the same diameter as the collar 38. The roller 37 is pivota'ble about an axis coinciding with the carrier axis and located between the roller 23 and an eye 45, and the pivotal movement is restricted by a projection 46 (IFIG. 6) on the collar 38, cooperating with a stop 47 of plastic material. The stop 47 is screwed to the angle iron 13' with the insertion of a Ibush 48, the angle iron 13 carrying the eye 45. In the same corner of the carrier outline there is fastened lche round iron rod 414 which on each of the outer surfaces 49 perpendicular to one another receives a row of screws 50 with guide heads for the material wound off the spools 16 which rotate in opposite directions.

Ball bearings are associated with the cylinder 39 at its stepped ends and carried by respective anges of a cover 51 and by a ratchet wheel 52. The latter is rotationally fast with a bush 53 by means of a key and groove and can be stepped by a double pawl 54 which is pivotally mounted on the outside of the plate 11 on a bolt 55 and is of symmetrical construction. The bush -3 has a fixed flange 56 and -a movable ilange 57, each ange having a slot which -receives the spring 40 at the end. The flange 57 is coupled by a pin S8 to a slot 59 in the cylinder 39 and applies a pivotol movement to the roller 37.

At its free end the bush '53 has a threaded stem 60 for a nut 61, which by an external thread is joined to a cap nut 62 and receives a spring ring 63, so that a readily detachable connection to the tension shaft 9 is made. For the purpose of easy operation, the two nuts 61, 62 are provided with a hexagonal periphery. For the purpose of changing the spools 16, the tensioning shaft 9 is pulled out in the upward direction; for the purpose of changing the spring 40 this is not necessary.

The .braid material running -otf the spools 16 is inserted through the .guides 50 into the common eye 45 and runs over the rollers 37 and 23 to a rotating head y64, which is mounted in needle bearings in a lateral extension of the plate 12. The braid material which is under tension loads the brake lever 22 and brakes the spools 16, while the roller 37 oscillates and receives the loops formed by the braid material during the running of the carrier. The braid material also drives the rings 41, 42 without slipping on them.

The arrangement according to the invention is simple and operationally reliable in construction and in operation.

As already mentioned, the drawings merely illustrate one embodiment of the invention by way of a non-restrictive example. On the contrary, many other embodiments and applications Iare possible. Thus a one-piece or welded carrier can be provided for the tension Idevice and spools.

I claim:

1. Carrier varrangement for braiding machines comprising a rotary carrier having an axis; a tension shaft mounted on said carrier and having an axis coinciding with said axis; and a plurality of spools for braiding material mounted for rotation about said axis on said tension shaft.

2. Carrier arrangement as claimed in claim 1 comprising a spring-biased brake means for said spools including a part guiding braiding -material wound off from said spools and responsive to the pressure of the same to actuate said brake means.

3. Carrier arrangement as claimed in claim 2 wherein said brake means include a brake disc mounted on said shaft for axial movement toward and away from said spools, and a brake lever having a shorter arm connected with said brake disc, and a longer arm extending along said shaft and having said part at the free end thereof for guiding the m-aterial.

`4. Carrier arrangement as claimed in claim 1 comprising a cylinder mounted on said shaft for rotation, a guide roller for braiding material mounted on said cylinder, `and means connecting said cylinder with said shaft and including spring means.

5. Carrier arrangement as claimed in claim 1; wherein said carrier includes a head portion and a foot portion, and connecting supports connecting said head portion and foot portion.

i6. Carr-ier arrangement as claimed in claim 5 comprising a rod extending parallel to said shaft and connecting said head portion with said foot portion, said rod having a plurality of guides in the proximity of said spool for guiding braiding material wound off from the same.

7. Carrier arrangement as claimed in claim 5 wherein said carrier includes a plurality of parallel bearing plates supported by said connecting supports and having bearings for supporting said shaft.

8. Carrier arrangement as claimed in claim 2 wherein said :brake means include a brake disk mounted on said shaft for axial movement toward and away from said spools, and a brake lever having a shorter arm connected with said brake disk, and a longer arm extending along said shaft and having said part at the free end thereof for guiding the material; wherein said carrier includes a head portion and a foot portion, and connecting supports connecting said head portion and -foot port-ion; and comprising adjusting means in said foot portion for adjusting the position of said brake lever.

References Cited UNITED STATES PATENTS `3,109,605 11/ 1963 Osterman 242-1298 3,168,995 2/'1965 Osterman 242-1298 LEONARD D. CHRISTIAN, Primary Examiner. 

1. CARRIER ARRANGEMENT FOR BRAIDING MACHINES COMPRISING A ROTARY CARRIER HAVING AN AXIS; A TENSION SHAFT MOUNTED ON SAID CARRIER AND HAVING AN AXIS COINCIDING WITH SAID AXIS; AND A PLURALITY OF SPOOLS FOR BRAIDING MATERIAL MOUNTED FOR ROTATION ABOUT SAID AXIS ON SAID TENSION SHAFT. 